Nice 450! I had a '05 450 also and sold it about a dozen years ago. Ironically I'm pretty much back to where I left off with a 525 now. About a 61cc difference and the seat of the pants dyno says it's got a little bit more everywhere. I love the RFS for trail riding and also the easy valve checks, no shims to mess with!Not a 525, but I do miss my RFS 450.